Pan-greasing machine



ug.ll3, 1929. y s, DEBUS 1,724,643

PAN GREAS ING lMACHINE era MM liz 11 n :i B g .i Z A Se I Z gi a I:J'Huwm i, f y

A l l c1 uw Aug. 13, 1929. 5 DEBUS 1,724,643

PAN GREAS ING MACHINE Filed Oct. 7. 1927 5 Sheets-Sheet 2 HH @s n1vanto@ Aug. 13, 1929.n s. DEBUs PAN GREASING MACHINE Filed oct. 7, 19275 Shams-Sheet 3 Aug. 13, 1929. s. DEBUS PAN GREASING MACHINE 5sheets-sheet 4 Filed Oct. 7, 1927 Aug. 13, 1929V s, DEBUS 1,124,643

PAN GREAS ING MACHINE Filed Oct. '7, 192'? 5 Sheets-Sheet 5 q/ attenua,

Patented Aug. 13, 1929.

UNITED5 STATES Piirzu'r` yori-ica SANDER DEBUS, 0I' HASTINGB, NEBRASKA.

PAN-GBEASING MACHINE. Application led October 7, 1927. Serial No.224,705.

This invention has for its ob'ect the provision of mechanism wherebyaking pans ma be efectually s rayed with hot rease an the su ply of vt espray automatically controlled t rough the moyement of the ans overthespraying nozzles. Another ject of the invention is to provide meanswhereby the fumes of the grease may be driven from the machine and anyrease which may tend to pass oil' with the games will be trapped and maybe subsequently recovered for further use. The invention also providesmeans whereb the surplus grease which drops `from t e pans and thespraying elements may be returned to the grease supply and screened orfiltered so that any impurities which may have been caught by it will beremoved. The invention also provides means whereby the spraying elementsmay be adjusted to the size of the pans being treated and seeksgenerally to improve the construction, arrangement and operation of theseveral parts to-.the end that the durability and efficiency of themachine may be increased. These stated objects, and other objects whichwill incidentally appear in the course of the following description, areattained in the use of such an apparatus as is illustrated in theaccompanying, drawings, and the invention resides in certain novelfeatures which will be articularly pointed out in the appended (gaims.

In the drawings:

Figure 1 is a view, partly in longitudine section, ratus' embodying theinvention;

Fig. 2 is an enlarged plan view with the cover removed;

lartly in elevation and of an appa- 3-3 of Fig. 2;

Fig. 4 is an enlarged elevation of the ad justable spraying device withparts lin section` on the line 4-4 of Fig. 2;

Fig. 5 is an elevation of the stationary spraying device, with parts insection, on the .line 5-5 of Fig. 2;

Fig. 6 is a detail section on the line 6-'6 of Fig.v 5; l

Fig. 7 is a sectional elevation of the damper and blower whereby theobnoxious fumesLare driven o' Fig. 8 is a detail elevation of thedamper, and l Fig. 9 is an enlarged detail section of a v 'or dies ofvarious Fig. 3 is a transverse section on the line portion of the greasepot and the strainer cover for the same.

In carrying out the invention, there is provided a casing, indicatedgenerally at 1, which is of proper form andl dimensions to` house allthe working parts and which may conveniently be constructed of sheetmetal reinforced at Athe corners and atall points of-strain by anglebars or similar elements. In the lower portion of the casing, there isarranged a reservoir 2 for compressed air and at one end of the casingis provideda motor 3 driving an air compressor 4 and also operating agrease pump 5, these parts being-- of any app struc-tion and beingillustrated in a conventional manner only. The casing is also providedwith a screened opening 6 in its end to admit air to the compressor andavoid the passage of dust and other foreign matter into the compressorand the tank with the air. Above the compressor 4 is a fan or blower 7having its own motor 8I and there will also be provided in the front ofthe casing suitable switches for controlling the motors .3 and 8 as wellas the circuit for the electric heating element in the grease pot andpressure gages connected with the air and grease circu ating systems, aswell as a thermometer and other instrumentalities which'may beadvantaeous in the operation of the ap aratus. At-tie opposite end of thecasing, t ere is a transverse partition 9 whereby a compartment 10 isrovided for the storage of pan-supporting ies or platesJ which are not1n use, 1t being the intention to provide a pluralit of pan-carryingplates 'mensions so that pans of any standard sizes may machine. I

In the upper portion of the casin there is supported a tank 11 havingits ttom inclinedo from its ends 'toward its transverse central line todirect sur lus grease back into the grease pot 12 whic may convenientlybe formedas a^n integral portion of the tank, the grease pot dependingfrom the bottom. of the tank, as shown clearly in Fig. 1, and having anelectric heating element 13 carried upon its bottom, as

shown. The heating element 13 will, of

roved or well known coneisH be treated in the course, be insulated fromthe' bottom of the from the ends of the element, as -indicated in Fig.1, and a thermometer, indicated at 14, may be provided in the grease pot1f desired. The grease pump 5 is mounted upon the side of the grease potadjacent the bottom of the same and the outlet from the pot to the pumpis suitably screened, as shown at 15 in Fig. 3. On the Walls of thegrease pot, immediately adjacent the top thereof, ledges 16 are securedthereto and a cover 17 is supported on the ledges. As shown most clearlyin Fig. 9, th1s cover consists of an upper plate 18 having countersunkopenings 19 therethrough and a screen plate 20 welded to the under sideof the cover and having its edges spaced from the edges of the upperplate whereby the cover may rest vupon and conform to the ledges 16, asshown. Preferably, the cover is formed in two sections, as shown in Fig.

f3, the front section being provided at its rear end with a strip 21projecting rearwardly so as to underlie the front edge of the backsection andthe front section is equipped at its front end with aconvenient handle 22 whereby it may be easily inserted in place orremoved as necessary.

Secured upon the front wall of the tank adjacent the top thereof is atrack 23 which may conveniently be an angle bar, and a similar track 24is carried by brackets 25 secured to the back wall of the tank, Ythetrack 24 being thus spaced from the backl wall of the tank, to providespace for some of the` operating mechanism and the pipes whereby thegrease and air are led from the pump 5 and the reservoir 2 to thespraying devices. The pans, shown at 26 in Fig. l, are moved backand'forth over the spraying nozzles by a carriage 27, which carriage isequipped with rollers 28 running upon the front track 23 and rollers 29running upon the back track 24. The carriage 1s an open metallic framerabbeted, as shown at 30, to support a die plate and its front side isformed with inwardly projecting enlarge' ments 31 to which thebearingsfor the front rollers 28 are secured, the under surface of thefront side of the carriage being slightly recessed so that the rollers28 may be located under the carriage, as shown in Fig. 3, therebybringing the carriage close to the front of the tank. The rear side of.`the carriage is formed with rearwardly projecting extensions orplates32, the urpose of which will presently a pear.. 'libe die p late,indicated at 33, 1s o proper dimensions to fit upon the rabbet 30 of thecar riage so as to be held against relative movement and it isconstructed with partitions 34 uponwhich and the sides of the plate thebaking pans may rest in inverted position, the spaces -between theseveral artitlons and the sides of the die plate eing entirely open andunobstructed so that a free passage for the spray is provided. A cover35 is provided ou the casing over the tank and the operating mechanismand has an opening 36 therethrough so that the pans will be accommodatedand ample movement of the pans to permit thorough greasing will beallowed. Extension plates 37 are secured to the sides of the carriageand project therefrom under the side p ortions of the cover 35 so thatthe spraying grease cannot escape through the opening 36 but will bedeflected by the extension plates 37 and turned back ,into the tank torun down the inclined bottom`\of the same to the screen cover 17 andthence-pass back to the grease pot. At one end of the tank is an outlet38 in which is pivotally mounted a damper 39, the outlet 38 leadingdirectly into the blower or fan 7 so that when the damper is in openposition fumes of the grease will be drawn from the tank and drivenoutside the building. During the working stroke of the carriage, thedamper is closed and on the back stroke of the carriage the damper isautomatically opened and it remains open at all times, except whenthe'carriage is making its working stroke. Depending from the, casingofthe fan or blower 7 is a trap 40 having a drain cock 41 at its lowerend whereby any grease with which the fumes may be loaded will be caughtto be subsequently recovered.

An outlet pipe 42 leads from the grease pump 5 under the tank toward oneend of the same where it is connected with a pressure governor 43 of anyapproved construe? tion which will prevent excessive pressure of thegrease in the spraying nozzles or at the grease cut-off valve. From thepressure regulator '43, a pipe 44 leads to the grease cut-off valve 45which is located under the cover 35 between the back track 24 and theback of the tank. This cut-off valve may be of any preferred or approvedform in which the valve is openedv by inward movement of its stem,indicated at 46, and the air cut-olf valve 47 is of like construction,the air cut-off valve being also located between the hack track v24 andthe back wall of the'tank. A pipe 48 connects the air valve with thereservoir 2. From the oil cut-oil' valve 45, a pipe 49 extends into thetank along one side of the same and has its front end supported in a box50 secured on the front wall of the tank and serving as a closure :forsaid end of the pipe. At the opposite side of thetank, a pipe 51 ismounted and this pipe leads from the air cut-oil valve 47 and has itsfront end supported in a socket or box which is similar to the box 50and serves as a closure for the end of the pipe 51. Adjacent the frontends, of the pipes 49 and 51, fittings 52 and 53 are mounted,respectively, thereon, and

i plingv sleeve Athese fittings ca rry a cross air pipe 54 and ed, thebase of the nipple constituting a.

`spray nozzles 61 and closure for said pipe. Extending down'- wardlyfrom the sleeve is an elbow 1n which the end of the grease pipe 55 isfitted and this elbow has a passage 57 conducting the grease' from thepipe 49 intol the pipe 55, as, clearly shown in Fig. 5. The fitting 53has a de nding elbow which is solid and has a soc eted end 58 receivingthe end of the pipe 55 whereby said end will be sup` portedJ but will beclosed to prevent the escape of the grease, `and the u per portion ofthe fittingv 53 is 'in the orm of a sleeve having a lateral nozzle 59receiving the end of the pipe 54 whereby said pipe is placed incommunication with the air ply pipe 51. 'Fitted into the air pipe 54 atintervals are valve casings 60 which establish communication betweensaid pipe and at corresponding intervals connecting tubes 62 are fittedto the oil pipe 55 and lead into the spray nozzles so that when thevalves 60are opened and the apparatus is operating the compressed airwill escape through the nozzle and create a suction which will draw asupply of grease through the nozzle, the air and rease comthe greasewill e atomized and discharged in a fine spray against the .51 in anobvious manner.

y sleeves 63, andp the pipe 65 with with the oil supply pip connectedwith the pipes 65 and 66 in the same manner that inner surface Aof theinverted pans 26. It will be understood that the .valves are set so asto adjust the flow through the individual nozzles as it frequentlyhappens that, notwithstanding care in manufacture and nin assembling,the nozzles do not operate in recisely the same manner. The air supply,owever, isl derived from the reservoir 2 and is maintained in saidreservoir by the action of the air compressor 4 while the grease pump 5operates to maintain a suilicient supply of grease in the several Greasepipes so that there will at no time be a failure of the supply of eitherthe grease or the air.

Slidably mounted upon the pipes 49 and 51 are sleeves 63 which are heldin set positions by thumb 'screws .64 mounted therein and bearing uponthe respective pipes 49 and An air ipe ipe 66 are carried y the aiiexible hose 67 connects the air pipe'l'while a sim- 68 connects theoil pipe 66 e 49. Nozzles 69 are and a grease ilar flexible hose n thenozzles 61 are conncted withthe ipes 54 and 55 so that both ends -of theba 'ng .pans will be sprayed.

.the greater sup- C has its free end turned obliquely toward thecarriage, as shown at 73, and tending constantly to bear against thecarriage. These cam levers may be yieldably held toward the carriage inany convenient manner, and I have indicated at 74ltorsion springs coiledaround the and having their ends fitted in the levers and the plates 32respectively, itbeing noted that portion of the length of each lever isspaced from ythe carriage and maintained in that spaced relation -by theob- 4liquely turned end 73. Mounted upon respectively adjacentA brackets25 are valvecontrolling lever arms 75 and 76 each of which has aninturned terminal 77 carrying a roller 78 which is adapted to ride uponthe adjacent cam 72 and upon the side ,ofy the carriage in the operationof the mechanism.

pivots of the respective levers4 The outer sidesof the levers 75 and 76are connected in any convenient manner with the stems of thevalves 47and 45 respectively so that as these levers rock the valves will beopened or closed. The lever 76 is equipped with a finger or extension 79at its pivot end and a spring 80 is secured to and extends between thisfinger and the back wall of the end of the lever tank so as to hol-d thefree normally inward. The end of the lever 75 is formed withan outwardlyextending projec# tion'81v having a pin and slot vconnection with onearm of an angle lever 82 and a spring 83 isR attached to said anglelever and to the back wall Cof the tank to exert a constant tensionthereon holding the lever 75 inward. To the outer end of the angle leveris pivoted one end of a connecting rod 84 which extends to the motor endof the 4casing and is there pivoted to the free end of a crank 85 on theend -of the rod or shaft 86 which carries the damper 39, the damperbeing thus opened and closed-by the action of the angle lever the spraybeing cut oi during the back stroke. During the working stroke of thecarriage, the damper 39 is closed but during the back stroke the damperis opened and it remains open until a second working stroke is started.In the'position shown in Fig. 2 of the drawings, the working stroke ofthe carriage is in progress and the rollers 78 are bearing against theouter side edges of the respective cam levers. The oil and air cut-offvalves are opened and will' remain open until the working stroke iscompleted at which time the pivoted ends of. the respective cams will becarried beyond the free ends of the levers 75 and 76 and the springs 80and 83 will then at once swing the levers 75 and 76 so as to carry therollers against the side of the carriage. On the ensuing back stroke ofthe carriage, the rollers will pass between the carriage and the camlevers A 72 and at the end of the stroke will engage the obliquelydisposed end portions 73 `and swing the same outwardly, the springs 74immediately returning the cam levers to contact with the carriage,whereupon the rollers assume positions adjacent and against theextremities of the cam levers. On the next working stroke of thecarriage, the inclined sides of these terminals 73 will be engaged bythe respective rollers and the latter and the levers 75 and 76 will beswung outwardly so that the valves 45 and 47 will be again opened. Whenthe lever 75 is thus swung outwardly, the angle lever 82 will be rockedso that the connecting rod 84 will rock the damper crank 85 and closethe damper and when the working stroke is completed and the severalparts are rocked to close the valves 45 and 47 the angle lever 82 willbe rocked in the reverse direction and the damper opened.

From the foregoing description, taken in connection with theaccompanying drawings, it will be seen that I have provided a verycompact .apparatus whereby baking vpans may be thoroughly and rapidlysprayed with grease and the operation will be entirely automatic except:for the manual impulse imparted to the carriage and the pans toreciprocate them across the spray nozzles. The grease or oil to besprayed is placed in the greasepot 12 to any desired level before thepans are placed in position and the screen cover 17 is then placed overthe grease pot, the electric circuit through the heating element 13being closed so that said element will function to melt the grease andmaintain it ina thoroughly liquid condition. The grease pump and the aircompressor will operate to maintain a constant supply of air and greasein the pipes leading directly to the spray nozzles and the parts willneed no attention except possibly at long intervals of use.

mamas l. In a pan-greasing machine, the combination of sprayingelements, means for supplying grease and an atomizing agent to thespraying elements whereby the grease will be atomized at the elements, apan carrier mountedl for travel above the spraying elements, and meanscontrolled by the carrier to admit grease and atomizing agent to thespraying elements during the working stroke of the carrier and cuttingoil' the supply of grease and atomizing agent during the back stroke ofthe carrier.

2. In a pan-greasing machine, the combination of spraying nozzles, meansfor supplying grease and an atomizing agent to the nozzles whereby thegrease will be atomized in the nozzles and discharged Atherefrom in aspray, av pan carrier mounted for reciprocation ab'ove the nozzles,cut-off valves controllingthe flow o grease and atomizin agentrespectively, and devices controlle by the reciprocation of thecarrierto open said valves during the working stroke of the carrier and 'toclose the valves during the back stroke of the carrier.

3. In a pan-greasing machine, the combination of spraying nozzles, meansfor supplying grease and an atomizing agent to said nozzles, cut-odvalves interposed in said means for controlling the iiow of the greaseand atomizing agent respectively, a reciproeating pan carrier mountedabove the nozzles, levers mounted at one side of the carrier andconnected with said valves, and cams on the carrier actin upon saidlevers whereby the valves will e opened durin the working stroke of thecarrier and close during the return stroke of the carrier.

4. In a pan-greasing machine, the combination of spraying nozzles, meansfor supplying rease an an atomizing agent to the nozz es, valvesinterposed in said means for controllin the flow, levers mountedadjacent the sai valves and connected therewith, and pivoted camelements mounted on the carrier and engaging said levers whereby thevalves will be opened during the working stroke of the carrier andclosed during the back stroke of the carrier.

5. In a pan-greasing machine, the combination ofs'praying nozzles, a pancarrier mounted forreciprocation above the nozzles, means for supplyinggrease and an atomizing agent to the nozzles, valves interposed in saidmeans to control the flow, levers pivotally mounted between the valvesand the carrier and connected with the valves to operate the same andhaving their free ends projecting toward the carrier, brackets on. thecarrier, and cam elements pivotally mounted on said brackets andyieldably held toward the carrier, the free ends of said cam the leverswhereby uring the working stroke of the Vcarrier the levers will because to' ride on the free endsA of-the cam elements and alon'g thesides of the-same to open the valves and on theback stroke of thecarrier will travel between the` cam elements and the carrier \tomaintain the lvalves closed.

6. In a pan-greasing machine, the combination ofa relatively stationasprayin nozzle, a movable spraying nozile mount for adjustment towardand from the -stationary nozzle, means for supplying grease and anatomizing fluid under pressure to the nozzles, a pan carrierreciprocatin above the nozzles, and meanscontrolled by e carrier foradmitting grease and atomizing fluid to0 the nozzles during the workingstroke of the carrier and cutting of the grease .and atomizing fluid tothe nozzles a during the back stroke of the carrier.

cation at one end ply vpipe and closed: at its opposlte end by the mainatomizing fluid supply opposite end0 at 7. In a pan-greasing machine,the combination of a relatively stationary nozzle, a movable `nozzleadjustable toward and .frm the stationary nozzle, rigid pipes supplyinggrease and an atomizing fluid to the stationary nozzle, flexible' pipesconnected with the rigid pipes and supplying grease and atomizing fluidto the movable nozzle, a pan carrier mounted ito reciprocate above thenozzles, and means controlled by the carrier for permitting iiow ofgrease and atomizin fluid during the working stroke of the carrier andpreventing such flow during the back vstroke of the carrier.

8. Infa pan-greasing machine, the combination of a' plurality ofspraying nozzles, main supply pipes conveying grease and an atomizingfluid respectively, supplemental pipes connected directly with thespraying nozzles, one of said with the main ease suppipe and theother'of said supplemental pipes being in communication at Ione end withthe main atomizing fluid supply pipe 'and closed at the main greasesupply pipe. Y 9. In a pai-grasing machine, the combi'- nation of agrease supgly pipe, a supply pipe for atomizing uid, ttings on saidlpes, the fitting v011 one pipe having an ou et: in

communication therewith and adependingl socketfclosed to said pipe andthe tting onv the other pipe being closed thereto at one side andA havinta depending elbow` open; thereto, a branc grease-conveying pipe securedat one end 1n the depending portion of the last-mentioned tittingand atits other end in the socketof .the first-mentioned fit-A connectedat/.one end in ting, a branch p the second-mentioned fitthe closed sideo nation of a tank fo pipes being in communi 14. Ina.-

Imeans controlled by for elements being beveledtand extending to- .tingand at its opposite end in the outlet .ward the carrier and 'saidelements be' enof the first-mentioned fitting, and connecgaged by theinwardl projecting en o tions between the said branch pipes and thespray nozzles. f L e `10. In a pan greasing-machine, the combiease, anoutlet at one end of said tank, a amper in said outlet,

Yspraying nozzles mounted in the tank, a pan carrier supported forreciprocation in the tank above the spray nozzles, means for su plyinggrease and an atomizing fluid tot spraynozzles, and means controlled bythe carrier for permitting low of grease and atomizin iluid to thenozzles and clos` the damper uring lthe work' stroke 1dlgthe carrier andfor opening the damper and cutting oif the flow of grease andfatomizingfluid during the back stroke of the carrier.

11. In a pan-greasing-machine, the combination of a tank for grpasehaving an outlet 'at one end, a blower at said outlet for driving oifumes, a damper in said outlet, a pan carrier mounted for reciprocationin the tank, means for spraying pans on the `car rier during thereciprocation of thecarrier, and means controlled by the carrier forclosing the damper during the working stroke of the same and opening thedamper on the return stroke of the carrier.

012. In a pan-greasing machine, the combination of a tank for grease, apan carrier mounted for reciprocation in the upper portion of the tank,an outlet in off fumes, a grease tra connected with sa blower, a damperin die outlet, and means controlled by the carrier for closing thedamper during the working stroke of the 'carrier and opening the. damperduring the return istroke of the carrier. l' v 13. In a pan-greasingmachine, the com- -bination of a tank, a grease pot in the bottom of thetank, spraying nozzles mounted in the tank above the grease pot, aheating element in the grease pot, `a pan carrier mounted to reciprocateabove the spraying nozzles, means for suppl ing an atomizing fluid `tothe rayin n oz es, means for forcing grease rom t e 'tank tothe sprayingnozzles', carrier for permitting iiow of grease and atomizing -fluidduring the workin stroke of the carrier and cuttm off such ow during thereturn stroke of the carrier.-

pan-greasing machine, the combination of aita fa; grease pot in thebottom of' the tank, a screening cover over of spraing noz-1-l`thegrease pot, a luralit zles mounted in t e ta pot, a tion above theforcingvgrease om the spraying ,nozzles, means atomizinguid tothel4abovx'atiegrease and means' controlled by the pan:

pan carrier mounted -forjreciproca-` rayin'g nozzles, for i tothe 0ri-Supplying en nozzles, and-` mitting flow of grease and atomizing fluidto the nozzles during the ,working stroke of the carrier and cutting ofisuch flow during the return stroke of the carrier.

' 15. In a pan-greasing machine', the combination of a casing, a coverfor said casing having an opening therethrough to accommodate pansv tobe greased, a plurality of spra ing nozzles mounted in the casing belowt e opening through the cover, means for supplying grease and anatomizing fluid to the spraying nozzles, a pan carrier mounted forreciprocation below the cover, and grease deflectors carried by the endsof the pan carrier 'and projecting therefrom under the cover at'thesides of the opening therethrough.

16. In a pan-greasing machine, the combination of a tank, a grease potdepending from the bottom of the tank, ledges on the Walls of the greasepot -at the top of the same, a screened cover consisting of a perforatedplate having its edges rest-ing oni said ledges, and a screen secured tothe under side of said perforated plate, said plate and screen beingformed in sections, a supporting strip secured to the under side of onesection at the meeting edge thereof and underlying the meeting edge fthe other section, spraying' elements in the tank above the grease pot,a pan carrier mounted for reciprocation above the spraying elements,means for transferring grease from the grease pot to the sprayingelements, and means for supplying an atomizing fluid to the sprayingelements.

In testimony whereof I allix my signature. y

SANDER DEBUS. [11. s.l

